Preparation method of coating film with reinforced antifogging function

An anti-fog film and coating film technology, which is applied in the field of self-adhesive, can solve the problems of leaf diseases and insect pests and rot, and affect the light transmittance of agricultural films, etc., to improve heat aging resistance, significant anti-fog effect, and suppress diseases The effect formed

Inactive Publication Date: 2019-05-24

张海涛

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AI-Extracted Technical Summary

Problems solved by technology

[0002] Due to its certain hydrophobicity on the surface of the plastic film, when it is used as an agricultural film, when its surface temperature reaches below the fog point, or when the water vapor in the air reaches supersaturation, water droplets will condense or atomize, and the existenc...

Method used

Can find out that modified PET film in the present invention has good heat-resistant aging performance by table 1, the present invention is by adding a certain amount of castor oil modified nano-bentonite particles in PET film preparation, can effectively improve modified PET film The heat aging resistance of the permanent PET film makes the remote configuration of the macromolecular chain in the amorphous region of the modified PET film not easy to change under long-term high temperature, suppresses the occurrence o...

Abstract

The invention discloses a preparation method of a coating film with a reinforced antifogging function and relates to the technical field of antifogging films. The surface of a modified PET film is coated with a layer of coating film body, and the modified PET film is prepared from PET resin, castor-oil-modified nano bentonite and a plasticizer; the coating film body is formed by drying a coating liquid on the surface of the modified PET film, and the coating liquid is prepared from, by weight, 3-glycidoxypropyltriethoxysilane, propylene glycol, camellia seed oil, sodium dodecyl benzene sulfonate, castor-oil-modified nano bentonite and deionized water. The prepared coating film with the reinforced antifogging function has not only excellent antifogging performance but also great heat resistance and aging resistance.

Application Domain

Coatings

Technology Topic

Propylene glycolChemistry +9

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Examples

Experimental program(3)
Comparison scheme(6)
Effect test(1)

Example Embodiment

[0022] Example 1

[0023] A method for preparing a coated reinforced anti-fog film, coating a layer of coating film on the surface of a modified PET film, the modified PET film is made of the following components by weight: PET resin 95, castor oil modified Nano bentonite 15, plasticizer 1.2; the coating film is formed by drying the coating liquid on the surface of the modified PET film, and the coating liquid is made of the following components in parts by weight: 3-glycidoxypropane Triethoxysilane 4, Propylene Glycol 15, Camellia Seed Oil 2, Sodium Dodecylbenzene Sulfonate 5, Castor Oil Modified Nano Bentonite 5, Deionized Water 50.

[0024] Further, the preparation method of the castor oil modified nano-bentonite includes the following steps:

[0025] (1) Add the peptide nucleic acid to the buffer, stir at 120r/min for 30min at 40℃, and then add 15% nano-bentonite particles of the buffer mass, and stir at a constant temperature of 55℃ at 200r/min. For 2 hours, add formamide with 2.8% of the mass of nano-bentonite particles, then ultrasonic treatment for 3 minutes, let it stand for 10 minutes, then filter, clean, and dry to constant weight to obtain modified nano-bentonite;

[0026] (2) The modified nano-bentonite and castor oil obtained above are uniformly mixed in a 50:1.3 mass ratio, and 1.2% of the modified nano-bentonite mass is added with triethanolamine, and then the temperature is 130-140°C for grinding 4 hours, and then naturally cooled to room temperature, the castor oil modified nano-bentonite is obtained.

[0027] Further, the mixing mass ratio of the peptide nucleic acid added to the buffer is 1:20.

[0028] Further, the buffer is a citric acid-disodium hydrogen phosphate buffer solution.

[0029] Further, the citric acid-disodium hydrogen phosphate buffer solution is made by mixing liquid A and liquid B, liquid A is to take 22.5 g of citric acid and deionized water to dissolve it into a 1000 mL solution, and liquid B is to take phosphoric acid 72.36g of disodium hydrogen, add water to dissolve it into a 1000mL solution, then take 62.51mL of A solution and 39.62mL of B solution, and stir at a constant temperature of 50°C at 120r/min for 40min to obtain.

[0030] Further, the ultrasonic frequency is 40kHz, and the power is 1000W.

[0031] Further, the plasticizer is dioctyl adipate.

[0032] Further, the method for preparing the camellia seed oil is:

[0033] (1) Selection of raw materials, using camellia seeds and melon seeds with intact surface;

[0034] (2) Put the camellia seeds in a 5.5% sodium cocoylglycinate solution and soak for 2 hours at 55℃, then filter and dry until the moisture content reaches 10%; put the fennel seeds into the mass fraction Soak in a 3.8% sodium maleate solution at 60°C for 1 hour, then filter and dry until the moisture content reaches 8.5%;

[0035] (3) Grind the dried camellia seeds and gualouzi respectively to obtain camellia seed powder and gualouzi powder;

[0036] (4) Mix the camellia seed powder and gualou seed powder in a 5:2 mass ratio into a sealed container, and inject ethanol preheated to 72°C, stir at 1500r/min for 3 hours, and let stand for 2 hours. Then filter to obtain ethanol leachate;

[0037] (5) Put the ethanol extract obtained above into a vacuum tank and conduct low-temperature vacuum concentration to obtain camellia seed oil.

[0038] Further, the temperature is controlled at 22° C., and the vacuum degree is 12 Pa.

Example Embodiment

[0039] Example 2

[0040] A method for preparing a coated reinforced anti-fog film, coating a layer of coating film on the surface of a modified PET film, the modified PET film is made of the following components by weight: PET resin 98, castor oil modified Nano bentonite 20, plasticizer 1.6; the coating film is formed by drying the coating liquid on the surface of the modified PET film, and the coating liquid is made of the following components in parts by weight: 3-glycidoxypropane Triethoxysilane 6, Propylene Glycol 18, Camellia Seed Oil 3, Sodium Dodecylbenzene Sulfonate 7, Castor Oil Modified Nano Bentonite 8, Deionized Water 55.

[0041] Further, the preparation method of the castor oil modified nano-bentonite includes the following steps:

[0042] (1) Add the peptide nucleic acid to the buffer, stir at 120r/min for 30min at 40℃, and then add 15% nano-bentonite particles of the buffer mass, and stir at a constant temperature of 55℃ at 200r/min. For 2 hours, add formamide with 2.8% of the mass of nano-bentonite particles, then ultrasonically treat for 5 minutes, let it stand for 10 minutes, then filter, clean, and dry to constant weight to obtain modified nano-bentonite;

[0043] (2) The modified nano-bentonite and castor oil obtained above are uniformly mixed in a 50:1.3 mass ratio, and 1.2% of the modified nano-bentonite mass is added with triethanolamine, and then the temperature is 140 ℃, and the grinding is carried out for 4 hours , And then naturally cooled to room temperature to obtain castor oil modified nano-bentonite.

[0044] Further, the mixing mass ratio of the peptide nucleic acid added to the buffer is 1:20.

[0045] Further, the buffer is a citric acid-disodium hydrogen phosphate buffer solution.

[0046] Further, the citric acid-disodium hydrogen phosphate buffer solution is made by mixing liquid A and liquid B, liquid A is to take 22.5 g of citric acid and deionized water to dissolve it into a 1000 mL solution, and liquid B is to take phosphoric acid 72.36g of disodium hydrogen, add water to dissolve it into a 1000mL solution, then take 62.51mL of A solution and 39.62mL of B solution, and stir at a constant temperature of 50°C at 120r/min for 40min to obtain.

[0047] Further, the ultrasonic frequency is 40kHz, and the power is 1000W.

[0048] Further, the plasticizer is dioctyl adipate.

[0049] Further, the method for preparing the camellia seed oil is:

[0050] (1) Selection of raw materials, using camellia seeds and melon seeds with intact surface;

[0051] (2) Put the camellia seeds in a 5.5% sodium cocoylglycinate solution and soak for 2 hours at 55℃, then filter and dry until the moisture content reaches 10%; put the fennel seeds into the mass fraction Soak in a 3.8% sodium maleate solution at 60°C for 1 hour, then filter and dry until the moisture content reaches 8.5%;

[0052] (3) Grind the dried camellia seeds and gualouzi respectively to obtain camellia seed powder and gualouzi powder;

[0053] (4) Mix the camellia seed powder and gualou seed powder in a 5:2 mass ratio into a sealed container, and inject ethanol preheated to 72°C, stir at 1500r/min for 3 hours, and let stand for 2 hours. Then filter to obtain ethanol leachate;

[0054] (5) Put the ethanol extract obtained above into a vacuum tank and conduct low-temperature vacuum concentration to obtain camellia seed oil.

[0055] Further, the temperature is controlled at 22° C., and the vacuum degree is 12 Pa.

Example Embodiment

[0056] Example 3

[0057] A method for preparing a coating-enhanced anti-fog film. A layer of coating film is coated on the surface of a modified PET film. The modified PET film is made of the following components in parts by weight: PET resin 96, castor oil modified Nano bentonite 18, plasticizer 1.3; the coating film is formed by drying the coating liquid on the surface of the modified PET film, and the coating liquid is made of the following components in parts by weight: 3-glycidoxypropane Triethoxysilane 5, Propylene Glycol 16, Camellia Seed Oil 2.5, Sodium Dodecylbenzene Sulfonate 6, Castor Oil Modified Nano Bentonite 7, Deionized Water 52.

[0058] Further, the preparation method of the castor oil modified nano-bentonite includes the following steps:

[0059] (1) Add the peptide nucleic acid to the buffer, stir at 120r/min for 30min at 40℃, and then add 15% nano-bentonite particles of the buffer mass, and stir at a constant temperature of 55℃ at 200r/min. For 2 hours, add 2.8% formamide of nano-bentonite particles, then ultrasonic treatment for 4 minutes, let stand for 10 minutes, then filter, clean, and dry to constant weight to obtain modified nano-bentonite;

[0060] (2) The modified nano-bentonite and castor oil obtained above are uniformly mixed in a 50:1.3 mass ratio, and 1.2% of the modified nano-bentonite mass is added with triethanolamine, and then the temperature is 135°C for 4 hours. , And then naturally cooled to room temperature to obtain castor oil modified nano-bentonite.

[0061] Further, the mixing mass ratio of the peptide nucleic acid added to the buffer is 1:20.

[0062] Further, the buffer is a citric acid-disodium hydrogen phosphate buffer solution.

[0063] Further, the citric acid-disodium hydrogen phosphate buffer solution is made by mixing liquid A and liquid B, liquid A is to take 22.5 g of citric acid and deionized water to dissolve it into a 1000 mL solution, and liquid B is to take phosphoric acid 72.36g of disodium hydrogen, add water to dissolve it into a 1000mL solution, then take 62.51mL of A solution and 39.62mL of B solution, and stir at a constant temperature of 50°C at 120r/min for 40min to obtain.

[0064] Further, the ultrasonic frequency is 40kHz, and the power is 1000W.

[0065] Further, the plasticizer is dioctyl adipate.

[0066] Further, the method for preparing the camellia seed oil is:

[0067] (1) Selection of raw materials, using camellia seeds and melon seeds with intact surface;

[0068] (2) Put the camellia seeds in a 5.5% sodium cocoylglycinate solution and soak for 2 hours at 55℃, then filter and dry until the moisture content reaches 10%; put the fennel seeds into the mass fraction Soak in a 3.8% sodium maleate solution at 60°C for 1 hour, then filter and dry until the moisture content reaches 8.5%;

[0069] (3) Grind the dried camellia seeds and gualouzi respectively to obtain camellia seed powder and gualouzi powder;

[0070] (4) Mix the camellia seed powder and gualou seed powder in a 5:2 mass ratio into a sealed container, and inject ethanol preheated to 72°C, stir at 1500r/min for 3 hours, and let stand for 2 hours. Then filter to obtain ethanol leachate;

[0071] (5) Put the ethanol extract obtained above into a vacuum tank and conduct low-temperature vacuum concentration to obtain camellia seed oil.

[0072] Further, the temperature is controlled at 22° C., and the vacuum degree is 12 Pa.

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Classification and recommendation of technical efficacy words

Good heat aging resistance
Improve heat aging resistance

Ethylene propylene diene rubber composition for air outlet pipe of intercooler and preparation method thereof

InactiveCN102627809AExcellent extrusion performanceGood heat aging resistance

Owner:TIANJIN PENGYI GRP CO LTD

Preparation method of coating film with reinforced antifogging function

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

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Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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